What Is The Difference Between $message And $$message
Anwser 1:$message is a simple variable whereas $$message is a reference variable. Example:$user = 'bob'is equivalent to$holder = 'user';$$holder = 'bob';Anwser 2:They are both variables. But $message is a variable with a fixed name. $$message is a variable who's name is stored in $message. For example, if $message contains "var", $$message is the same as $var.
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